The American Economic Association's registry for randomized controlled trials
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326 Trials Found
C93, I23
I12, I21, O15
C21, C93, D1, D81, D90, I12, I21
I23, D83, D91
C21; C93; D1; D81; D90; I12; I21
C93, I21, P16, A21
C93, I21, D83, A21, D14
C93, I21, O16
I21, L26, O15